Finding the Fourth Proportional to 18,190,263.90, 27,285,395.85 and 5,409,107.85
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Solution
The fourth proportional to 18,190,263.90, 27,285,395.85 and 5,409,107.85 is: 8,113,661.78
Step by Step Solution
- Step 1: Write the proportion equation
18,190,263.90 : 27,285,395.85 = 5,409,107.85 : x - Step 2: Convert to fraction form
18,190,263.90/27,285,395.85 = 5,409,107.85/x - Step 3: Cross multiply
18,190,263.90x = 27,285,395.85 × 5,409,107.85 - Step 4: Simplify right side
18,190,263.90x = 147,589,648,882,592.41 - Step 5: Solve for x
x = 147,589,648,882,592.41/18,190,263.90 - Step 6: Final answer
x = 8,113,661.78
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.